deps: update dependency google-cloud-storage to v2.5.0 (#404)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [google-cloud-storage](https://togithub.com/googleapis/python-storage) | `==2.0.0` -> `==2.5.0` | [![age](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/2.5.0/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/2.5.0/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/2.5.0/compatibility-slim/2.0.0)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/google-cloud-storage/2.5.0/confidence-slim/2.0.0)](https://docs.renovatebot.com/merge-confidence/) |

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